/*
 * Copyright (c) 2004, 2005, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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 */

// Locator2Impl.java - extended LocatorImpl
// http://www.saxproject.org
// Public Domain: no warranty.
// $Id: Locator2Impl.java,v 1.2 2004/11/03 22:49:08 jsuttor Exp $

package org.xml.sax.ext;

import org.xml.sax.Locator;
import org.xml.sax.helpers.LocatorImpl;


/**
 * SAX2 extension helper for holding additional Entity information,
 * implementing the {@link Locator2} interface.
 *
 * <blockquote>
 * <em>This module, both source code and documentation, is in the
 * Public Domain, and comes with <strong>NO WARRANTY</strong>.</em>
 * </blockquote>
 *
 * <p> This is not part of core-only SAX2 distributions.</p>
 *
 * @author David Brownell
 * @since SAX 2.0.2
 */
public class Locator2Impl extends LocatorImpl implements Locator2 {

  private String encoding;
  private String version;


  /**
   * Construct a new, empty Locator2Impl object.
   * This will not normally be useful, since the main purpose
   * of this class is to make a snapshot of an existing Locator.
   */
  public Locator2Impl() {
  }

  /**
   * Copy an existing Locator or Locator2 object.
   * If the object implements Locator2, values of the
   * <em>encoding</em> and <em>version</em>strings are copied,
   * otherwise they set to <em>null</em>.
   *
   * @param locator The existing Locator object.
   */
  public Locator2Impl(Locator locator) {
    super(locator);
    if (locator instanceof Locator2) {
      Locator2 l2 = (Locator2) locator;

      version = l2.getXMLVersion();
      encoding = l2.getEncoding();
    }
  }

  ////////////////////////////////////////////////////////////////////
  // Locator2 method implementations
  ////////////////////////////////////////////////////////////////////

  /**
   * Returns the current value of the version property.
   *
   * @see #setXMLVersion
   */
  public String getXMLVersion() {
    return version;
  }

  /**
   * Returns the current value of the encoding property.
   *
   * @see #setEncoding
   */
  public String getEncoding() {
    return encoding;
  }

  ////////////////////////////////////////////////////////////////////
  // Setters
  ////////////////////////////////////////////////////////////////////

  /**
   * Assigns the current value of the version property.
   *
   * @param version the new "version" value
   * @see #getXMLVersion
   */
  public void setXMLVersion(String version) {
    this.version = version;
  }

  /**
   * Assigns the current value of the encoding property.
   *
   * @param encoding the new "encoding" value
   * @see #getEncoding
   */
  public void setEncoding(String encoding) {
    this.encoding = encoding;
  }
}
